IELTS READING – Glow-worms S28GT5

IELTS SIMULATOR GENERAL TRAINING READING - Glow-worms S28GT5 FREE COMPUTER DELIVERED ONLINE IELTS SIMULATION.............
IELTS READING

Glow-worms

A The glow-worm belongs to a family of beetles known as the Lampyridae or fireflies. Q30 The fireflies are a huge group containing over 2000 species , with new ones being discovered all the time. The feature which makes fireflies and glow-worms so appealing is their ability to produce an often dazzling display of light. The light is used by the adult fireflies as a signal to attract a mate, and each species must develop its own ‘call-sign’ to avoid being confused with other species glowing nearby. So within any one area each species will differ from its neighbours in some way, for example in the colour or pattern of its light, how long the pulses of light last, the interval between pulses and whether it displays in flight or from the ground.

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IELTS LISTENING – Ocean Biodiversity S1T4

IELTS SIMULATOR ONLINE GENERAL TRAINING IELTS LISTENING - Ocean Biodiversity S8GT4 FREE COMPUTER DELIVERED ONLINE IELTS SIMULATION

IELTS LISTENING

Ocean Biodiversity

I’ve been looking at ocean biodiversity, that’s the diversity of species that live in the world’s oceans. About 20 years ago biologist developed the idea of what they called ‘biodiversity hotspots’.

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